added docstring for add_video
added docstring for add_video

ims-tyler/PyBBIO,graycatlabs/PyBBIO,graycatlabs/PyBBIO,ims-tyler/PyBBIO,ims-tyler/PyBBIO,leftbrainstrain/PyBBIO,graycatlabs/PyBBIO,leftbrainstrain/PyBBIO,ims-tyler/PyBBIO,graycatlabs/PyBBIO,leftbrainstrain/PyBBIO,graycatlabs/PyBBIO,leftbrainstrain/PyBBIO,ims-tyler/PyBBIO,leftbrainstrain/PyBBIO